A Scottish businessman is hoping for success for his Karnap invention after impressing the panel on Dragons' Den.

John McMonagle, who owns McMonagles fish restaurant in Clydebank, came up with the idea for the inflatable car bed after getting fed up trying to pitch tents in poor weather conditions.

He said: "I was trying to get comfy in my car because the weather outside was horrendous when I had that Eureka moment,.

"I don't know why no-one's thought of it before. I had to go to China to get the prototype made. It fits in 9 out of 10 cars, provides a comfortable flat surface for sleeping and even has privacy windows."

Although McMonagle failed to get the £125,000 investment he wanted he enjoyed facing the Dragons.

The 51-year-old said "We had some great banter.

"They were trying to wind me up, but I wasn't biting. Peter climbed in and Theo had a shot, plus Duncan knew my restaurant, McMonagles, so there was a bit of chat about fish and chips."

Monagle did take the advice of the Dragons though and has started selling the Karnap online with an £84 price tag.

He added: "The reaction I've had so far to the Karnap is fantastic. My daughter's gone to a music festival for the first time because she knows she'll be comfy and safe in the car."